Medical Definition of Lichenization

1. Hypertrophy of the epidermis, resulting in thickening of the skin with exaggeration of the normal skin markings, giving the skin a leathery barklike appearance, which is caused by prolonged rubbing or scratching. It may arise on seemingly normal skin or it may develop at the site of another pruritic cutaneous disorder.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)

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